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Car Forum / Honda Cars / May 2008

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OT; Nitrogen filled tires

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Tony Hwang - 16 May 2008 04:11 GMT
Hi,
Just wondered what if topping up with ordinary air to a nitrogn filled
tires. What would happen? Good, bad or any harm?
jim beam - 16 May 2008 04:24 GMT
> Hi,
> Just wondered what if topping up with ordinary air to a nitrogn filled
> tires. What would happen? Good, bad or any harm?

not a problem.  the question is, why did you bother with nitrogen in the
first place?
Tony Hwang - 16 May 2008 04:39 GMT
>> Hi,
>> Just wondered what if topping up with ordinary air to a nitrogn filled
>> tires. What would happen? Good, bad or any harm?
>
> not a problem.  the question is, why did you bother with nitrogen in the
> first place?

Hi,
Wife had new tires put on at Costco and they only use nitrogen.
When I took the car to a lube joint for oil change they are not gonna
bother with tire pressure check because of nitrogen(green valve cap).
jim beam - 16 May 2008 04:59 GMT
>>> Hi,
>>> Just wondered what if topping up with ordinary air to a nitrogn filled
[quoted text clipped - 7 lines]
> When I took the car to a lube joint for oil change they are not gonna
> bother with tire pressure check because of nitrogen(green valve cap).

just do it yourself and fill at the next gas station.

there's a small advantage to nitrogen related to partial pressures, but
that only works on initial fill.  after that, you may as well just
maintain pressure with free/cheaper air.  you'll certainly never know
any difference driving around.
mjc13<REMOVETHIS> - 16 May 2008 05:12 GMT
>>> Hi,
>>> Just wondered what if topping up with ordinary air to a nitrogn filled
[quoted text clipped - 7 lines]
> When I took the car to a lube joint for oil change they are not gonna
> bother with tire pressure check because of nitrogen(green valve cap).

   Since air is mostly nitrogen anyway, you will just end up with less
nitrogen in the mix, which was probably not 100% nitrogen to begin with,
because the tires would have had some air in them before inflation.
Tegger - 16 May 2008 12:11 GMT
>> Hi,
>> Just wondered what if topping up with ordinary air to a nitrogn filled
>> tires. What would happen? Good, bad or any harm?
>
> not a problem.  the question is, why did you bother with nitrogen in the
> first place?

Indeed.

Of what advantage is 85% nitrogen over the 78% in regular air?



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Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

Jim Yanik - 16 May 2008 13:24 GMT
>>> Hi,
>>> Just wondered what if topping up with ordinary air to a nitrogn
>>> filled tires. What would happen? Good, bad or any harm?

it wastes the oney you spent to get a nitrogen fill.

>> not a problem.  the question is, why did you bother with nitrogen in
>> the first place?
>
> Indeed.
>
> Of what advantage is 85% nitrogen over the 78% in regular air?


less O2 for the tires to absorb?
(internal pressure forcing more absorbtion that outside air.)

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Jim Yanik
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at
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jim beam - 16 May 2008 13:50 GMT
>>>> Hi,
>>>> Just wondered what if topping up with ordinary air to a nitrogn
>>>> filled tires. What would happen? Good, bad or any harm?
>
> it wastes the oney you spent to get a nitrogen fill.

that's why you shouldn't waste your money in the first place!

>>> not a problem.  the question is, why did you bother with nitrogen in
>>> the first place?
[quoted text clipped - 5 lines]
> less O2 for the tires to absorb?
> (internal pressure forcing more absorbtion that outside air.)

tires "absorb" [diffuse] oxygen from atmosphere anyway.  if the tire is
100% nitrogen, oxygen will still diffuse in - partial pressures.

the only technical advantage to nitrogen is on the extreme performance
end of the spectrum where you may want to minimize oxygen for fire
protection, or water vapor [always present in air] for icing.  like
aerospace.
Elmo P. Shagnasty - 16 May 2008 13:03 GMT
> Hi,
> Just wondered what if topping up with ordinary air to a nitrogn filled
> tires. What would happen? Good, bad or any harm?

Google "atmosphere composition"
JXStern - 17 May 2008 16:43 GMT
>Just wondered what if topping up with ordinary air to a nitrogn filled
>tires. What would happen? Good, bad or any harm?

if you allow any of the nitrogen to escape, thousands could be killed.

/sarc
Tony Hwang - 17 May 2008 16:47 GMT
>>Just wondered what if topping up with ordinary air to a nitrogn filled
>>tires. What would happen? Good, bad or any harm?
>
> if you allow any of the nitrogen to escape, thousands could be killed.
>
> /sarc

Yup,
Begining with you first, LOL!
LakeGator - 17 May 2008 20:01 GMT
> >Just wondered what if topping up with ordinary air to a nitrogn filled
> >tires. What would happen? Good, bad or any harm?
>
> if you allow any of the nitrogen to escape, thousands could be killed.
>
> /sarc

"Oh, the humanity!"
Chuck - 17 May 2008 22:03 GMT
As I recall consumer reports did something about this and it works really
well........................ at sucking $$ from peoples pockets.

That's about all.

>>Just wondered what if topping up with ordinary air to a nitrogn filled
>>tires. What would happen? Good, bad or any harm?
>
> if you allow any of the nitrogen to escape, thousands could be killed.
>
> /sarc
Tony Hwang - 18 May 2008 05:22 GMT
> As I recall consumer reports did something about this and it works really
> well........................ at sucking $$ from peoples pockets.
[quoted text clipped - 7 lines]
>>
>>/sarc

Hi,
Our local Costco tirep shop only uses Nitrogen for some reason.
Their price is very good.
Joe - 22 May 2008 03:36 GMT
> Hi,
> Our local Costco tirep shop only uses Nitrogen for some reason.
> Their price is very good.

I think you just found their reason.  Noone charges much for air ($.50
at a gas-station machine, max).  But they get to make money by selling
you nitrogen...   ;-)

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Joe - Linux User #449481/Ubuntu User #19733
joe at hits - buffalo dot com
"Hate is baggage, life is too short to go around pissed off all the
time..." - Danny, American History X

road apple - 22 May 2008 16:43 GMT
> > Hi,
> > Our local Costco tirep shop only uses Nitrogen for some reason.
[quoted text clipped - 3 lines]
> at a gas-station machine, max).  But they get to make money by selling
> you nitrogen...   ;-)

I use 80% nitrogen.  It's called air and is free.

Bob
Dave and Trudy - 18 May 2008 07:26 GMT
> As I recall consumer reports did something about this and it works really
> well........................ at sucking $$ from peoples pockets.
[quoted text clipped - 3 lines]
>>>Just wondered what if topping up with ordinary air to a nitrogn filled
>>>tires. What would happen? Good, bad or any harm?

That is as may be but I can tell you this. It works wonders for tires when
the temps hit -35F and even colder.

Dave D
Jeff - 18 May 2008 16:42 GMT
> As I recall consumer reports did something about this and it works really
> well........................ at sucking $$ from peoples pockets.
>
> That's about all.

Nitrogen has less water than air. Because the water in air tends to
condense onto the tire and rim or even get into the rubber, the amount
of water in the air doesn't stay constant, causing changes in tire
pressure with air. However, unless your regular drive is in a race car,
the changes are too small to make any real difference.

Personally, I use 80% nitrogen myself. The rest is mostly oxygen. And,
this gas is free at some gas stations. It's called "compressed air."

Jeff

>>> Just wondered what if topping up with ordinary air to a nitrogn filled
>>> tires. What would happen? Good, bad or any harm?
>> if you allow any of the nitrogen to escape, thousands could be killed.
>>
>> /sarc

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